I do not see an education in music composition as disqualifying, per se. I would be more curious about her background and work experience. If she's old enough to retire, when she started her career there were very few, if any, computer science majors offered, and probably no IT security majors.
I have my Bachelor's degree in musicology. Although I went back to school and got Master's degrees in Information Techology and Business Administration (as well as certificates in programming and database administration), I went into the software engineering field because, at the time, I was told that musicians use the same part of the brain as computer programmers, and that I'd be successful in either field. Been at it now for 30 years and haven't looked back.
I'm still grateful for my BA. I can still pick apart a Bach prelude and fugue, and enjoy it at the same time... :-)
I went into music study at 44, after I got laid off in my chosen industry. I was a math & science nerd in my youth.
With very little knowledge or understanding (I did not know what a chord was), I achieved the highest average (about 99%) in my first year of theory; I was later asked to tutor music students. My (much younger) peers included some accomplished musicians from a young age who had been home schooled and who also excelled.
One of my avocations now is composing choral music. I also occasionally perform as a chorister. (I performed in Star Wars in Concert, and The Lord of the Rings in concert. Both were major productions, and enormous pleasures.)
Music is a mathematical language that happens to sound good.